Senior Data Scientist - Demand Forecast

Greenhouse Software, Inc.; Paris; On-site; EUR 90,000 - 120,000; Full time

Job summary

Decathlon is seeking a talented and experienced Data Scientist to join our Demand and Assortment Planning team within the Supply Chain department. As a Senior Data Scientist, you will play a critical role in analyzing data, developing AI models to production, and providing insights to optimize demand forecasting and assortment planning processes.

We welcome candidates with expertise in time series forecasting and a passion for leveraging data to drive business decisions.

Qualifications

• Bachelor-level degree in a quantitative field and 5+ years of data science experience.
• Strong Python skills for data analysis and modeling.
• Experience with time series forecasting and inventory analytics is a plus.

Responsibilities

• Analyze historical sales data and market trends to forecast demand.
• Develop and implement advanced models for forecasting and assortment planning.
• Collaborate with Supply Chain, Engineering, and Product teams to align AI efforts with business goals.
• Evaluate and improve forecasting models for accuracy and efficiency.
• Communicate insights through clear visualizations and presentations.
• Stay current with industry trends in data science and supply chain analytics.

Skills

Time series forecasting

Python

Spark

TensorFlow

PyTorch

Data visualization

SQL

Education

Bachelor's degree in CS/Statistics/Math/Engineering

Master's or PhD in DS/Statistics/OR

Tools

Databricks

AWS Sagemaker

Git

Confluence

Job description

Decathlon aims to become the best sports digital platform and open ecosystem in the world. We want to enable customers to experience Decathlon through many local sport-centric experiences by connecting many third-party actors and services, in a secure and performant way.

Our digital teams in Lille, Paris, and Amsterdam (and more…) which bring together more than 5000 collaborators are united to build and scale digital products with the aim to always deliver the best value to our users. With a presence in more than 70 countries, Decathlon is committed to innovation, sustainability, and customer satisfaction.

Job Description

Decathlon is seeking a talented and experienced Data Scientist to join our Demand and Assortment Planning team within the Supply Chain department. As a Senior Data Scientist, you will play a critical role in analyzing data, developing AI models to production, and providing insights to optimize demand forecasting and assortment planning processes. We welcome candidates with expertise in time series forecasting and a passion for leveraging data to drive business decisions.

Responsibilities

• Analyze historical sales data and market trends to forecast demand for Decathlon products.
• Develop and implement advanced statistical models and machine learning algorithms for demand forecasting and assortment planning, including foundation model.
• Collaborate with cross-functional teams including Supply Chain Business, Engineering, and Product Development to align Data and AI efforts with business objectives.
• Evaluate and improve existing forecasting models and methodologies to enhance accuracy and efficiency.
• Communicate insights and recommendations to stakeholders through clear and concise data visualizations and presentations.
• Stay updated on industry trends and emerging technologies in data science and supply chain management.

Hard Skills

• Proficiency in statistical analysis,machine learning techniques, time series time series analysis (stationarity, decomposition, drift, anomaly detection) and forecasting.
• Experience with programming languages such as Python, Spark, TensorFlow, Pytorch for data analysis and modeling.
• Strong knowledge of data manipulation and visualization tools such as pandas, NumPy, Matplotlib, or ggplot2.
• Familiarity with database systems and querying languages (e.g., SQL, PySpark) for data extraction and manipulation.
• Experience with demand forecasting and inventory optimization software/tools is a plus.

Soft Skills

• Excellent analytical and problem-solving abilities with a keen attention to detail.
• Strong communication and collaboration skills to work effectively in cross-functional teams.
• Ability to translate complex technical concepts into actionable insights for non-technical stakeholders.
• Self-motivated with a proactive approach to learning and professional development.
• Ability to thrive in a fast-paced and dynamic environment with changing priorities.
• Initiative and proactivity

Qualifications

Basic Qualifications

• Bachelor's degree in Computer Science, Statistics, Mathematics, Engineering, or related field.
• 5 year of experience in data analysis, statistical modeling, or related fields.
• Proficiency in Python for data analysis and modeling.

Preferred Qualifications

• Master's or Ph.D. degree in Data Science, Statistics, Operations Research, or related field.
• Minimum 5 years of experience in Data Science.
• Experience in demand forecasting, inventory optimization, or supply chain analytics.
• Familiarity with Agile methodologies and project management tools.
• Previous experience in the retail or e-commerce industry is a plus.
• Experience in implementing Generative AI to enhance forecasting, alongside optimizing business or organizational processes for product delivery.

Technical Environment

• Execution Engine: Databricks, AWS EKS, Sagemaker
• Payload: Python, Spark, Scikit-Learn, Tensorflow / Pytorch, Pyspark
• CICD: Github Actions
• Serving: Docker, Protobuf, gRPC
• Orchestration: Airflow
• Documentation / code: Git, Confluence
• Agentic & Gen Ai : Gemini Enterprise Agent Platform

What if technology allowed us to push the boundaries and take sports experiences to new levels? That's exactly our goal at Decathlon Digital! We are a team of 5,000+ experts in software engineering, product management, data, cloud, and cybersecurity, distributed across Paris, Lille, and Amsterdam. Together, we are creating the largest digital sports platform, leveraging tech innovation from design to value chain optimization, connected experiences and product second life.

Changing the game for good. We are in this for the love of sports. And like everything we love, we want it to last. That’s why we are embarking on a journey to create a more sustainable tech model, reducing our direct environmental impact while maintaining a safe, diverse, and inclusive space for all our people to learn and thrive together. Team up with us to design the digital future of sports.

GDPR : When you apply to a job on this site, the personal data contained in your application will be collected by Decathlon SE, (“Controller”), which is located at 4 Boulevard de Mons 59650 Villeneuve d'Ascq. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities. Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment but for no longer than 2 years.

• You have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted.
• You also have the right to data portability. You can request these rights by clicking here .